public ApplicationSettingForm(DataManager data)
        {
            if (data == null)
            {
                throw new ArgumentNullException("data");
            }

            InitializeComponent();

            _dataManager = data;

            this.textBox_AmountsSplitCharacter.Text = _dataManager.GetAmountsSplitCharacter().ToString();
            this.textBox_CommentSplitCharacter.Text = _dataManager.GetCommentSplitCharacter().ToString();
        }